US4731206A - Process and device for the production of shaped bodies in molds - Google Patents

Process and device for the production of shaped bodies in molds Download PDF

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Publication number
US4731206A
US4731206A US06/816,492 US81649286A US4731206A US 4731206 A US4731206 A US 4731206A US 81649286 A US81649286 A US 81649286A US 4731206 A US4731206 A US 4731206A
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US
United States
Prior art keywords
mold
members
current flow
molds
distributing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/816,492
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English (en)
Inventor
Arnulf Schubert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Naue & Naue & Co GmbH
Naue and Naue GmbH and Co
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Naue and Naue GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Naue and Naue GmbH and Co filed Critical Naue and Naue GmbH and Co
Assigned to NAUE & NAUE GESELLSCHAFT M.B.H. & CO. reassignment NAUE & NAUE GESELLSCHAFT M.B.H. & CO. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SCHUBERT, ARNULF
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/06—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using radiation, e.g. electro-magnetic waves, induction heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0811—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/34—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station
    • B29C33/36—Moulds or cores; Details thereof or accessories therefor movable, e.g. to or from the moulding station continuously movable in one direction, e.g. in a closed circuit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Definitions

  • the invention relates to a process for the production of shaped bodies of plastic material or foamed material, in particular on the basis of polyurethane foam, and a process for the production and/or compacting and/or drying and/or thermoplastic melting of non-woven materials, piles, plastic material fibers, fibers, rubberized hair, rubberized coir, glass fibers or the like which are impregnated, sprayed, wetted and the like with,in particular, thermosetting synthetic resins, for instance polyurethane, latex and the like, with the plastic material or the reactive components or the materials used for the production of the shaped bodies being introduced into a mold and the mold being heated in an inductor during the reaction of the components and the shaping.
  • thermosetting synthetic resins for instance polyurethane, latex and the like
  • the process of the type initially mentioned comprises the improvement that for the production of shaped bodies made of plastic materials, in particular of polyurethane foam or of fibers, non-woven fabrics or the like impregnated or wetted with synthetic resins or latex, of the reactive starting materials introduced into the molds, a frequency of 1 to 30 kHz, preferably 5 to 12 kHz, is adjusted and molds are used in which the individual mold parts are mutually electrically insulated in order to prevent a current flow in the mold around the shaped body, optionally forming or applying reinforcements or coating pieces of a material optionally identical to the material of the mold on the outsides of metallic mold walls for the distribution of the current flow.
  • the mold parts of composite molds are preferably simultaneously mutually sealed and electrically insulated, for instance by means of epoxy resin, silicone rubber, silicone resin, sealing or insulating strips or the like, in order to prevent a current flow in the mold around the shaped body.
  • epoxy resin silicone rubber, silicone resin, sealing or insulating strips or the like.
  • a device in particular for the carrying out of the process according to the invention with an inductor into which molds with foamed material components to be reacted, in particular polyurethane foam components and/or non-woven fabric-type components, piles, plastic material fibers, fibers, rubberized hair, rubberized coir or the like which are introduceable, in particular conveyed through in cycles or continuously, is characterized according to the invention in that for the production of shaped bodies of plastic material, in particular polyurethane foam or fibers, non-woven fabrics or the like impregnated or wetted with synthetic resins or latex or the like, of the reactive starting materials introduced into the molds, at a frequency of 1 to 30 kHz, preferably 5 to 12 kHz, the individual mold parts are mutually electrically insulated in order to prevent a current flow in the mold around the shaped body and reinforcements or coating pieces of the same or of a different material as the mold are optionally formed on or applied to the outsides of the metallic mold walls for the distribution of the current flow.
  • the inductor can have a cuboid or tubular inner space into which at least one mold is introduceable;the individual parts of the mold are inductively heatable and optionally sealed and are mutually electrically insulated.
  • the thin mold walls are inductively heated so as to supply heat to the outer layer of the shaped body to be formed.
  • the foam seal of the electric insulation does not have to be complete, as the molds usually have outlet openings for excess foam which is electrically insulating. Fibrous materials containing air which are compressible and do not expand do not require a sealing effect of the electric insulation.
  • a high degree of efficiency is achieved because no medium for heat transfer is required and less energy is consumed in comparison to molds heated by steam as a heating medium, due to the fact that the weight of the induction-heated molds, as a result of their construction, is only half that of steam-heated molds at the most.
  • This has the advantage that conveying and foaming installations can be laid out structurally lighter and thus less costly.
  • the highest possible mold temperature to be achieved is essentially higher and easier to reach than those of the conventional processes, since induction heating permits temperatures of 150° C. and more without difficulty, in contrast to steam and hot air.
  • the process and the device according to the invention can be used for heating, drying, and reacting of all materials for which the heat supply via the thin mold wall is sufficient to effect the desired treatment.
  • the mold has ventilating openings, preferably in the bottom and lid of the mold, for ventilating shaped bodies consisting of fiber-containing or fibrous materials, air-permeable formations, for instance rubberized hair formations sprayed with latex, can be dried, reacted, vulcanized and the like by passing heated air through the shaped body.
  • the process according to the invention has the advantage over conventional drying and treatment methods that heat can be supplied in spots where there is normally no heating if drying or heating in the air stream is provided.
  • the penetration depth of the electric or magnetic field into the inductively heatable mold walls or their inductively heatable layers only slightly exceed the wall thickness, preferably correspond to this thickness or be less than this thickness and optionally correspond to about one tenth to one half, in particular one fifth to one third, of the thickness of the mold walls or layers. If the mold walls are formed in layers, it may be convenient if the penetration depth of the field exceeds the thickness of the mold wall or is equal to it. It may also be of advantage if the penetration depth amounts to up to three quarters of the wall thickness; the penetration depth selected will also depend on the desired course of heating.
  • FIG. 1 is a perspective view of a device for the production of shaped, molded bodies in accordance with present invention.
  • FIG. 2 is a sectional view of a section of the walls of the mold.
  • FIG. 1 shows an inductor 2 consisting of a supporting box around which inductor coils 2' supplied with medium frequency are wound and connected to a generator 10 for generating the required electric alternating field.
  • the inductor 2 is preferably of rectangular cross section and its length is adapted to the length of the mold or exceeds this length, so that adequate induction and heating takes place at the front and rear ends of a mold 1.
  • the inner shape of the inductor does not matter. Its capacity is determined by the mold material and the desired temperature of the mold and the capacity can be specifically controlled for each individual mold by means of an appropriate control means.
  • Transport or conveying means such as rails 3 on which the molds 1 can be moved into and through the inductor 2 in cycles or continuously lead into the inductor. It is convenient to provide transport carts or rails of materials which are not heatable and cannot be influenced by the induction field.
  • FIGS. 1 and 2 show a mold 1 which is box-shaped in the instant case and consists of a bottom part 6 and a lid part 5, which box in its shape corresponds to an automobile seat.
  • reinforcements parts 4 or reinforcing frames enforcing and/or holding the lid part 5 and bottom part 6 together are arranged.
  • Reinforcement components on various mold parts, in particular reinforcing parts on the lid part 5, can be held together with the reinforcing parts on the bottom part 6 by means of locking or connecting means.
  • Locking means 7 are provided for interconnecting or locking lid part 5 and bottom part 6. It is also possible to use auxiliary frames or the like into which the mold 1 is e.g. clamped, instead of the reinforcing parts 4.
  • the lid part 5 is separable from the bottom part 6 along the line or the area 8 and electrically insulated at the same time.
  • the electric insulation 11 may comprise epoxy resin or other plastic materials or any given electrically insulating materials of adequate strength and temperature stability, completely insulates the lid part 5 from the bottom part 6 electrically and at the same time seals the mold 1.
  • the locking or closing means 7 and reinforcement parts 4 are constructed in a similar manner, so that they prevent a current flow from the upper lid part 5 to the lower lid part 6 and the formation of electrically conductive rings around the mold 1.
  • suitable sectioning insulations are also provided between the locking means 7 or the individual connecting means or the reinforcing parts 4 or the locking means 7, the reinforcing parts 4 and the connecting means, such as the hinges, consist of electrically insulating material.
  • the molds used in actual practice are of markedly irregular outer shape because they are adapted to the desired shape of the shaped body, for instance, the molds have the most diverse forms of seat upholsteries for automobiles, arm rests and the like.
  • the means 11 mutually electrically insulating the lid part and bottom part can be hardening sealing masses or prefabricated insertable sealing or insulating elements. These do not offer preferred circulating paths around the mold for the current flow induced in the mold and prevent an undefined heating due to circulating short circuit currents. This also applies to the auxiliary frames and to mutually connected reinforcing parts 4 arranged on separate mold parts.
  • a circulating ring can be prevented by inserting an electrical sectioning insulation or providing a slot or gap in such a manner that no annular currents can flow.
  • the short or small lateral faces and the front face of the mold shown in the drawing could each be formed of two parts and mutually electrically insulated, while the back wall could be made of one piece or of two mold parts conductively connected to one another (e.g. by means of a hinge) or not mutually insulated.
  • the electrically conductive faces thus have a cross section through the mold approximately in the form of a C which suffices for preventing undesired annular currents. If the hinges or locking means on the other walls of the mold are electrically insulated, those on the back wall of the mold could be electrically conductive.
  • materials of good electricity or heat conducting properties such as metals like Cu, Fe or alloys can be attached to the metallic walls of the mold and also function as electric bridges between zones of high and low eddy current density and effect an additional heating or balancing between high and low temperatures.
  • These materials or applications can consist of electrically better or worse conducting materials and/or better or worse heat-conducting materials as compared to the material of the preferably metallic and in particular steel walls of the mold.
  • These local applications of foreign materials for instance in the form of metals, alloys or the like cause the mold walls to heat up slower or faster than the basic material of the mold walls in these locations and make the temperature of the irregularly formed mold uniform over its surface.
  • the figure shows plates 9 attached to the mold 1, which plates can have various shapes and dimensions and can be attached, for instance welded, in various spots of the mold walls, such as on the lateral walls and/or on the lid part 5 and/or on the bottom part 6; instead of these or in addition thereto, the mold walls can be provided with integral thickenings whose effect corresponds to that of the plates 9 in the walls (i.e. the lateral walls and/or the bottom and/or the lid).
  • the permeability and/or electrical conductivity and/or thermal conductivity of the mold walls can be influenced so that a uniform temperature in the mold walls can be obtained.
  • auxiliary supports 14 consisting of a material that is not inductively influenced and thus unheatable at the frequency used.
  • the portions of the support 14 that are associated with or attached to the individual mold parts are mutually electrically insulated.
  • the mold walls can also be made up of several layers, for instance one layer of plastic material 12 which is lined with an inductively heated metal layer 13 on the inside as shown in FIG. 3. Care must be taken to calculate the penetration depth of the field so that it penetrates into the inductively heatable layer.
  • the penetration depth of the electric or magnetic field into the inductively heatable mold walls or their inductively heatable layers only slightly exceeds the thickness of the walls, or preferably corresponds to their thickness or is less than their thickness.
  • the penetration depth is approximately one tenth to one half, in particular one fifth to one third, of the thickness of the mold walls or layers.
  • the inner cross section of the inductor is preferably rectangular, but it can also be oval or cylindrical or adapted to specific shapes of the molds.
  • the process according to the invention and the device according to the invention are also applicable if the molds for forming the shaped body are rotated in the inductor, for instance for forming objects in the inductively heated molds in the spin casting process of appropriate plastic materials.
  • the process and the device are also suitable for fiber mats such as glass fiber mats cast or sprayed with plastic materials such as polyurethane foams which are to be dried, pressed, reacted or hardened.
US06/816,492 1985-01-17 1986-01-06 Process and device for the production of shaped bodies in molds Expired - Fee Related US4731206A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0010485A AT383775B (de) 1985-01-17 1985-01-17 Vorrichtung zur herstellung von formkoerpern
AT104/85 1985-01-17

Publications (1)

Publication Number Publication Date
US4731206A true US4731206A (en) 1988-03-15

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ID=3481620

Family Applications (1)

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US06/816,492 Expired - Fee Related US4731206A (en) 1985-01-17 1986-01-06 Process and device for the production of shaped bodies in molds

Country Status (13)

Country Link
US (1) US4731206A (ja)
EP (1) EP0191750B1 (ja)
JP (1) JPH0643072B2 (ja)
KR (1) KR930000744B1 (ja)
AT (1) AT383775B (ja)
AU (1) AU584969B2 (ja)
BR (1) BR8600204A (ja)
CA (1) CA1281877C (ja)
DE (1) DE3665148D1 (ja)
ES (1) ES8701582A1 (ja)
MX (1) MX165175B (ja)
PT (1) PT81858B (ja)
YU (1) YU45759B (ja)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5792492A (en) * 1996-07-05 1998-08-11 Seikoh Giken Co., Ltd. Optical disk molding apparatus equipped with liquid sealing means
US20040070116A1 (en) * 2001-02-22 2004-04-15 Alfred Kaiser Method and device for producing a shaped body
US20060279014A1 (en) * 2003-05-20 2006-12-14 Balchin Ian H Making foamed bodies
US20100179239A1 (en) * 2009-01-14 2010-07-15 Automotive Interior Consulting Method of minimizing compression set of foam
WO2012061476A1 (en) * 2010-11-04 2012-05-10 3M Innovative Properties Company Method of forming filter elements
US9364775B2 (en) 2010-11-04 2016-06-14 3M Innovative Properties Company Method of forming filter elements
CN110341177A (zh) * 2019-08-09 2019-10-18 成都领益科技有限公司 一种导电布分段包裹成型装置
US20220266480A1 (en) * 2021-02-22 2022-08-25 Airbus Operations Sas Device for consolidating a part made of composite material by induction heating
DE102016116473B4 (de) 2016-09-02 2023-01-05 Gottlob Thumm Maschinenbau Gmbh Verfahren und Vorrichtung zum Isolieren von Wicklungen tragenden elektrischen Bauteilen
CN110341177B (zh) * 2019-08-09 2024-05-10 成都领益科技有限公司 一种导电布分段包裹成型装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190614901A (en) * 1905-10-28 1906-10-11 Auergesellschaft Gmbh Improved Method of Producing Metallic Electrical Incandescence Bodies.
US2560783A (en) * 1948-12-04 1951-07-17 Us Rubber Co Molding apparatus
SU704796A1 (ru) * 1978-06-21 1979-12-25 Московский Ордена Трудового Красного Знамени Институт Химического Машиностроения Способ изготовлени асбестоцементных изделий
US4555373A (en) * 1982-03-03 1985-11-26 Vitrotex Saint-Gobain Pressing of reinforced thermosetting polymer articles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE554028C (de) * 1930-09-26 1932-07-04 Paul Klein Dr Vorrichtung zur induktiven elektrischen Beheizung von Vulkanisierformen
CH416076A (de) * 1962-04-05 1966-06-30 Freudenberg Carl Fa Verfahren zur Herstellung von genarbten Flächengebilden aus Kunststoff
FR1580529A (ja) * 1968-07-23 1969-09-05
DE1921065A1 (de) * 1969-04-25 1970-11-12 Denso Chemie Gmbh Verfahren und Vorrichtung zum dielektrischen Erwaermen von Objekten
FR2532585A1 (fr) * 1982-09-02 1984-03-09 Dunlop Ltd Procede et dispositif pour la fabrication d'un article moule devant etre soumis a un echauffement et a une pression lorsqu'il est dans un moule, et moyens de chauffage pour ce dispositif

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190614901A (en) * 1905-10-28 1906-10-11 Auergesellschaft Gmbh Improved Method of Producing Metallic Electrical Incandescence Bodies.
US2560783A (en) * 1948-12-04 1951-07-17 Us Rubber Co Molding apparatus
SU704796A1 (ru) * 1978-06-21 1979-12-25 Московский Ордена Трудового Красного Знамени Институт Химического Машиностроения Способ изготовлени асбестоцементных изделий
US4555373A (en) * 1982-03-03 1985-11-26 Vitrotex Saint-Gobain Pressing of reinforced thermosetting polymer articles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5792492A (en) * 1996-07-05 1998-08-11 Seikoh Giken Co., Ltd. Optical disk molding apparatus equipped with liquid sealing means
US20040070116A1 (en) * 2001-02-22 2004-04-15 Alfred Kaiser Method and device for producing a shaped body
US20060279014A1 (en) * 2003-05-20 2006-12-14 Balchin Ian H Making foamed bodies
US20100179239A1 (en) * 2009-01-14 2010-07-15 Automotive Interior Consulting Method of minimizing compression set of foam
WO2012061476A1 (en) * 2010-11-04 2012-05-10 3M Innovative Properties Company Method of forming filter elements
US9364775B2 (en) 2010-11-04 2016-06-14 3M Innovative Properties Company Method of forming filter elements
DE102016116473B4 (de) 2016-09-02 2023-01-05 Gottlob Thumm Maschinenbau Gmbh Verfahren und Vorrichtung zum Isolieren von Wicklungen tragenden elektrischen Bauteilen
CN110341177A (zh) * 2019-08-09 2019-10-18 成都领益科技有限公司 一种导电布分段包裹成型装置
CN110341177B (zh) * 2019-08-09 2024-05-10 成都领益科技有限公司 一种导电布分段包裹成型装置
US20220266480A1 (en) * 2021-02-22 2022-08-25 Airbus Operations Sas Device for consolidating a part made of composite material by induction heating

Also Published As

Publication number Publication date
AU584969B2 (en) 1989-06-08
EP0191750B1 (de) 1989-08-23
ES8701582A1 (es) 1987-01-01
JPH0643072B2 (ja) 1994-06-08
ES550764A0 (es) 1987-01-01
CA1281877C (en) 1991-03-26
AT383775B (de) 1987-08-25
PT81858B (pt) 1992-05-29
BR8600204A (pt) 1986-09-30
KR860005688A (ko) 1986-08-11
KR930000744B1 (ko) 1993-01-30
ATA10485A (de) 1987-01-15
JPS61164808A (ja) 1986-07-25
AU5243286A (en) 1986-07-24
YU45759B (sh) 1992-07-20
EP0191750A2 (de) 1986-08-20
DE3665148D1 (en) 1989-09-28
EP0191750A3 (en) 1986-10-08
PT81858A (de) 1986-02-01
MX165175B (es) 1992-10-30
YU4386A (en) 1988-02-29

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